6616009100 has 18 divisors (see below), whose sum is σ = 14356739964. Its totient is φ = 2646403600.

The previous prime is 6616009093. The next prime is 6616009139. The reversal of 6616009100 is 19006166.

It is a super-2 number, since 2×6616009100² = 87543152822565620000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33079946 + ... + 33080145.

Almost surely, 2^6616009100 is an apocalyptic number.

It is an amenable number.

6616009100 is an abundant number, since it is smaller than the sum of its proper divisors (7740730864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6616009100 is a wasteful number, since it uses less digits than its factorization.

6616009100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66160105 (or 66160098 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 6616009100 is about 81338.8535694965. The cubic root of 6616009100 is about 1877.2928726121.

The spelling of 6616009100 in words is "six billion, six hundred sixteen million, nine thousand, one hundred".